Abiotic factor-A non-living chemical or physical factor in the environment, such as soil, pH, forest fire, etc.

Biotic factor-Biotic factors are factors resulting from the activities of a living thing or any living component in an environment, such as the actions of an organism affecting the life of anothers organism.

Ecosystem-a system, or a group of interconnected elements,formed by the interaction of a community oforganisms with their environment.

Habitat-a.The natural environment in which a species or group of species lives: good coyotehabitat; managing wildlife habitat.b. A particular kind of natural environment: woodland and prairie habitats.c. An artificial environment created for an animal to live in: the lion habitat at the zoo.

Organism-a form of life composed of mutuallyinterdependent parts that maintain various vitalprocesses.

Population-A group of the same organisms living in the same place at the same time

Community-Community-managed taxonomy (CMT) opens categorization of content to the site's community. Users can influence both what terms nodes are tagged with and how these terms are themselves organized.

Classification-Taxonomic classification is the hierarchical organization of living beings into categories and subcategories that reveal their likenesses. The groupings used in this type of classification are called taxa, the plural of taxon, hence the name of the classification system. There are eight main levels in the currently used and internationally accepted taxonomic classification system, which has its foundations in the work of Carl Linnaeus. These levels are:

Kingdom > Phylum/Division > Class > Order > Family > Genus > Species >Variety.

Taxonomy-the science or technique of classification.